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freebsd-skq/sys/dev/ahci/ahciem.c
Konstantin Belousov cd85379104 Make MAXPHYS tunable. Bump MAXPHYS to 1M. 
Replace MAXPHYS by runtime variable maxphys. It is initialized from
MAXPHYS by default, but can be also adjusted with the tunable kern.maxphys.

Make b_pages[] array in struct buf flexible.  Size b_pages[] for buffer
cache buffers exactly to atop(maxbcachebuf) (currently it is sized to
atop(MAXPHYS)), and b_pages[] for pbufs is sized to atop(maxphys) + 1.
The +1 for pbufs allow several pbuf consumers, among them vmapbuf(),
to use unaligned buffers still sized to maxphys, esp. when such
buffers come from userspace (*).  Overall, we save significant amount
of otherwise wasted memory in b_pages[] for buffer cache buffers,
while bumping MAXPHYS to desired high value.

Eliminate all direct uses of the MAXPHYS constant in kernel and driver
sources, except a place which initialize maxphys.  Some random (and
arguably weird) uses of MAXPHYS, e.g. in linuxolator, are converted
straight.  Some drivers, which use MAXPHYS to size embeded structures,
get private MAXPHYS-like constant; their convertion is out of scope
for this work.

Changes to cam/, dev/ahci, dev/ata, dev/mpr, dev/mpt, dev/mvs,
dev/siis, where either submitted by, or based on changes by mav.

Suggested by: mav (*)
Reviewed by:	imp, mav, imp, mckusick, scottl (intermediate versions)
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
Differential revision:	https://reviews.freebsd.org/D27225
2020-11-28 12:12:51 +00:00

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/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2012 Alexander Motin <mav@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer,
* without modification, immediately at the beginning of the file.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/module.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/conf.h>
#include <sys/endian.h>
#include <sys/malloc.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <machine/stdarg.h>
#include <machine/resource.h>
#include <machine/bus.h>
#include <sys/rman.h>
#include <dev/led/led.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include "ahci.h"
#include <cam/cam.h>
#include <cam/cam_ccb.h>
#include <cam/cam_sim.h>
#include <cam/cam_xpt_sim.h>
#include <cam/cam_debug.h>
#include <cam/scsi/scsi_ses.h>
/* local prototypes */
static void ahciemaction(struct cam_sim *sim, union ccb *ccb);
static void ahciempoll(struct cam_sim *sim);
static int ahci_em_reset(device_t dev);
static void ahci_em_led(void *priv, int onoff);
static void ahci_em_setleds(device_t dev, int c);
static int
ahci_em_probe(device_t dev)
{
device_set_desc_copy(dev, "AHCI enclosure management bridge");
return (BUS_PROBE_DEFAULT);
}
static int
ahci_em_attach(device_t dev)
{
device_t parent = device_get_parent(dev);
struct ahci_controller *ctlr = device_get_softc(parent);
struct ahci_enclosure *enc = device_get_softc(dev);
struct cam_devq *devq;
int i, c, rid, error;
char buf[32];
enc->dev = dev;
enc->quirks = ctlr->quirks;
enc->channels = ctlr->channels;
enc->ichannels = ctlr->ichannels;
mtx_init(&enc->mtx, "AHCI enclosure lock", NULL, MTX_DEF);
rid = 0;
if (!(enc->r_memc = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
&rid, RF_ACTIVE))) {
mtx_destroy(&enc->mtx);
return (ENXIO);
}
enc->capsem = ATA_INL(enc->r_memc, 0);
rid = 1;
if (!(enc->r_memt = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
&rid, RF_ACTIVE))) {
error = ENXIO;
goto err0;
}
if ((enc->capsem & (AHCI_EM_XMT | AHCI_EM_SMB)) == 0) {
rid = 2;
if (!(enc->r_memr = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
&rid, RF_ACTIVE))) {
error = ENXIO;
goto err0;
}
} else
enc->r_memr = NULL;
mtx_lock(&enc->mtx);
if (ahci_em_reset(dev) != 0) {
error = ENXIO;
goto err1;
}
rid = ATA_IRQ_RID;
/* Create the device queue for our SIM. */
devq = cam_simq_alloc(1);
if (devq == NULL) {
device_printf(dev, "Unable to allocate SIM queue\n");
error = ENOMEM;
goto err1;
}
/* Construct SIM entry */
enc->sim = cam_sim_alloc(ahciemaction, ahciempoll, "ahciem", enc,
device_get_unit(dev), &enc->mtx,
1, 0, devq);
if (enc->sim == NULL) {
cam_simq_free(devq);
device_printf(dev, "Unable to allocate SIM\n");
error = ENOMEM;
goto err1;
}
if (xpt_bus_register(enc->sim, dev, 0) != CAM_SUCCESS) {
device_printf(dev, "unable to register xpt bus\n");
error = ENXIO;
goto err2;
}
if (xpt_create_path(&enc->path, /*periph*/NULL, cam_sim_path(enc->sim),
CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
device_printf(dev, "Unable to create path\n");
error = ENXIO;
goto err3;
}
mtx_unlock(&enc->mtx);
if (bootverbose) {
device_printf(dev, "Caps:%s%s%s%s%s%s%s%s\n",
(enc->capsem & AHCI_EM_PM) ? " PM":"",
(enc->capsem & AHCI_EM_ALHD) ? " ALHD":"",
(enc->capsem & AHCI_EM_XMT) ? " XMT":"",
(enc->capsem & AHCI_EM_SMB) ? " SMB":"",
(enc->capsem & AHCI_EM_SGPIO) ? " SGPIO":"",
(enc->capsem & AHCI_EM_SES2) ? " SES-2":"",
(enc->capsem & AHCI_EM_SAFTE) ? " SAF-TE":"",
(enc->capsem & AHCI_EM_LED) ? " LED":"");
}
if ((enc->capsem & AHCI_EM_LED)) {
for (c = 0; c < enc->channels; c++) {
if ((enc->ichannels & (1 << c)) == 0)
continue;
for (i = 0; i < AHCI_NUM_LEDS; i++) {
enc->leds[c * AHCI_NUM_LEDS + i].dev = dev;
enc->leds[c * AHCI_NUM_LEDS + i].num =
c * AHCI_NUM_LEDS + i;
}
if ((enc->capsem & AHCI_EM_ALHD) == 0) {
snprintf(buf, sizeof(buf), "%s.%d.act",
device_get_nameunit(parent), c);
enc->leds[c * AHCI_NUM_LEDS + 0].led =
led_create(ahci_em_led,
&enc->leds[c * AHCI_NUM_LEDS + 0], buf);
}
snprintf(buf, sizeof(buf), "%s.%d.locate",
device_get_nameunit(parent), c);
enc->leds[c * AHCI_NUM_LEDS + 1].led =
led_create(ahci_em_led,
&enc->leds[c * AHCI_NUM_LEDS + 1], buf);
snprintf(buf, sizeof(buf), "%s.%d.fault",
device_get_nameunit(parent), c);
enc->leds[c * AHCI_NUM_LEDS + 2].led =
led_create(ahci_em_led,
&enc->leds[c * AHCI_NUM_LEDS + 2], buf);
}
}
return (0);
err3:
xpt_bus_deregister(cam_sim_path(enc->sim));
err2:
cam_sim_free(enc->sim, /*free_devq*/TRUE);
err1:
mtx_unlock(&enc->mtx);
if (enc->r_memr)
bus_release_resource(dev, SYS_RES_MEMORY, 2, enc->r_memr);
err0:
if (enc->r_memt)
bus_release_resource(dev, SYS_RES_MEMORY, 1, enc->r_memt);
bus_release_resource(dev, SYS_RES_MEMORY, 0, enc->r_memc);
mtx_destroy(&enc->mtx);
return (error);
}
static int
ahci_em_detach(device_t dev)
{
struct ahci_enclosure *enc = device_get_softc(dev);
int i;
for (i = 0; i < enc->channels * AHCI_NUM_LEDS; i++) {
if (enc->leds[i].led)
led_destroy(enc->leds[i].led);
}
mtx_lock(&enc->mtx);
xpt_async(AC_LOST_DEVICE, enc->path, NULL);
xpt_free_path(enc->path);
xpt_bus_deregister(cam_sim_path(enc->sim));
cam_sim_free(enc->sim, /*free_devq*/TRUE);
mtx_unlock(&enc->mtx);
bus_release_resource(dev, SYS_RES_MEMORY, 0, enc->r_memc);
bus_release_resource(dev, SYS_RES_MEMORY, 1, enc->r_memt);
if (enc->r_memr)
bus_release_resource(dev, SYS_RES_MEMORY, 2, enc->r_memr);
mtx_destroy(&enc->mtx);
return (0);
}
static int
ahci_em_reset(device_t dev)
{
struct ahci_enclosure *enc;
int i, timeout;
enc = device_get_softc(dev);
ATA_OUTL(enc->r_memc, 0, AHCI_EM_RST);
timeout = 1000;
while ((ATA_INL(enc->r_memc, 0) & AHCI_EM_RST) &&
--timeout > 0)
DELAY(1000);
if (timeout == 0) {
device_printf(dev, "EM timeout\n");
return (1);
}
for (i = 0; i < enc->channels; i++)
ahci_em_setleds(dev, i);
return (0);
}
static int
ahci_em_suspend(device_t dev)
{
struct ahci_enclosure *enc = device_get_softc(dev);
mtx_lock(&enc->mtx);
xpt_freeze_simq(enc->sim, 1);
mtx_unlock(&enc->mtx);
return (0);
}
static int
ahci_em_resume(device_t dev)
{
struct ahci_enclosure *enc = device_get_softc(dev);
mtx_lock(&enc->mtx);
ahci_em_reset(dev);
xpt_release_simq(enc->sim, TRUE);
mtx_unlock(&enc->mtx);
return (0);
}
devclass_t ahciem_devclass;
static device_method_t ahciem_methods[] = {
DEVMETHOD(device_probe, ahci_em_probe),
DEVMETHOD(device_attach, ahci_em_attach),
DEVMETHOD(device_detach, ahci_em_detach),
DEVMETHOD(device_suspend, ahci_em_suspend),
DEVMETHOD(device_resume, ahci_em_resume),
DEVMETHOD_END
};
static driver_t ahciem_driver = {
"ahciem",
ahciem_methods,
sizeof(struct ahci_enclosure)
};
DRIVER_MODULE(ahciem, ahci, ahciem_driver, ahciem_devclass, NULL, NULL);
static void
ahci_em_setleds(device_t dev, int c)
{
struct ahci_enclosure *enc;
int timeout;
int16_t val;
enc = device_get_softc(dev);
val = 0;
if (enc->status[c][2] & SESCTL_RQSACT) /* Activity */
val |= (1 << 0);
if (enc->status[c][1] & SESCTL_RQSRR) /* Rebuild */
val |= (1 << 6) | (1 << 3);
else if (enc->status[c][2] & SESCTL_RQSID) /* Identification */
val |= (1 << 3);
else if (enc->status[c][3] & SESCTL_RQSFLT) /* Fault */
val |= (1 << 6);
timeout = 10000;
while (ATA_INL(enc->r_memc, 0) & (AHCI_EM_TM | AHCI_EM_RST) &&
--timeout > 0)
DELAY(100);
if (timeout == 0)
device_printf(dev, "Transmit timeout\n");
ATA_OUTL(enc->r_memt, 0, (1 << 8) | (0 << 16) | (0 << 24));
ATA_OUTL(enc->r_memt, 4, c | (0 << 8) | (val << 16));
ATA_OUTL(enc->r_memc, 0, AHCI_EM_TM);
}
static void
ahci_em_led(void *priv, int onoff)
{
struct ahci_led *led;
struct ahci_enclosure *enc;
int c, l;
led = (struct ahci_led *)priv;
enc = device_get_softc(led->dev);
c = led->num / AHCI_NUM_LEDS;
l = led->num % AHCI_NUM_LEDS;
if (l == 0) {
if (onoff)
enc->status[c][2] |= 0x80;
else
enc->status[c][2] &= ~0x80;
} else if (l == 1) {
if (onoff)
enc->status[c][2] |= SESCTL_RQSID;
else
enc->status[c][2] &= ~SESCTL_RQSID;
} else if (l == 2) {
if (onoff)
enc->status[c][3] |= SESCTL_RQSFLT;
else
enc->status[c][3] &= SESCTL_RQSFLT;
}
ahci_em_setleds(led->dev, c);
}
static int
ahci_check_ids(union ccb *ccb)
{
if (ccb->ccb_h.target_id != 0) {
ccb->ccb_h.status = CAM_TID_INVALID;
xpt_done(ccb);
return (-1);
}
if (ccb->ccb_h.target_lun != 0) {
ccb->ccb_h.status = CAM_LUN_INVALID;
xpt_done(ccb);
return (-1);
}
return (0);
}
static void
ahci_em_emulate_ses_on_led(device_t dev, union ccb *ccb)
{
struct ahci_enclosure *enc;
struct ahci_channel *ch;
struct ses_status_page *page;
struct ses_status_array_dev_slot *ads, *ads0;
struct ses_elm_desc_hdr *elmd;
struct ses_elm_addlstatus_eip_hdr *elma;
struct ses_elm_ata_hdr *elmb;
uint8_t *buf;
int i;
enc = device_get_softc(dev);
buf = ccb->ataio.data_ptr;
/* General request validation. */
if (ccb->ataio.cmd.command != ATA_SEP_ATTN ||
ccb->ataio.dxfer_len < ccb->ataio.cmd.sector_count * 4) {
ccb->ccb_h.status = CAM_REQ_INVALID;
goto out;
}
/* SEMB IDENTIFY */
if (ccb->ataio.cmd.features == 0xEC &&
ccb->ataio.cmd.sector_count >= 16) {
bzero(buf, ccb->ataio.dxfer_len);
buf[0] = 64; /* Valid bytes. */
buf[2] = 0x30; /* NAA Locally Assigned. */
strncpy(&buf[3], device_get_nameunit(dev), 7);
strncpy(&buf[10], "AHCI ", SID_VENDOR_SIZE);
strncpy(&buf[18], "SGPIO Enclosure ", SID_PRODUCT_SIZE);
strncpy(&buf[34], "2.00", SID_REVISION_SIZE);
strncpy(&buf[39], "0001", 4);
strncpy(&buf[43], "S-E-S ", 6);
strncpy(&buf[49], "2.00", 4);
ccb->ccb_h.status = CAM_REQ_CMP;
goto out;
}
/* SEMB RECEIVE DIAGNOSTIC RESULT (0) */
page = (struct ses_status_page *)buf;
if (ccb->ataio.cmd.lba_low == 0x02 &&
ccb->ataio.cmd.features == 0x00 &&
ccb->ataio.cmd.sector_count >= 3) {
bzero(buf, ccb->ataio.dxfer_len);
page->hdr.page_code = 0;
scsi_ulto2b(5, page->hdr.length);
buf[4] = 0x00;
buf[5] = 0x01;
buf[6] = 0x02;
buf[7] = 0x07;
buf[8] = 0x0a;
ccb->ccb_h.status = CAM_REQ_CMP;
goto out;
}
/* SEMB RECEIVE DIAGNOSTIC RESULT (1) */
if (ccb->ataio.cmd.lba_low == 0x02 &&
ccb->ataio.cmd.features == 0x01 &&
ccb->ataio.cmd.sector_count >= 16) {
struct ses_enc_desc *ed;
struct ses_elm_type_desc *td;
bzero(buf, ccb->ataio.dxfer_len);
page->hdr.page_code = 0x01;
scsi_ulto2b(4 + sizeof(*ed) + sizeof(*td) + 11,
page->hdr.length);
ed = (struct ses_enc_desc *)&buf[8];
ed->byte0 = 0x11;
ed->subenc_id = 0;
ed->num_types = 1;
ed->length = 36;
ed->logical_id[0] = 0x30; /* NAA Locally Assigned. */
strncpy(&ed->logical_id[1], device_get_nameunit(dev), 7);
strncpy(ed->vendor_id, "AHCI ", SID_VENDOR_SIZE);
strncpy(ed->product_id, "SGPIO Enclosure ", SID_PRODUCT_SIZE);
strncpy(ed->product_rev, "2.00", SID_REVISION_SIZE);
td = (struct ses_elm_type_desc *)ses_enc_desc_next(ed);
td->etype_elm_type = 0x17;
td->etype_maxelt = enc->channels;
td->etype_subenc = 0;
td->etype_txt_len = 11;
snprintf((char *)(td + 1), 12, "Drive Slots");
ccb->ccb_h.status = CAM_REQ_CMP;
goto out;
}
/* SEMB RECEIVE DIAGNOSTIC RESULT (2) */
if (ccb->ataio.cmd.lba_low == 0x02 &&
ccb->ataio.cmd.features == 0x02 &&
ccb->ataio.cmd.sector_count >= (3 + enc->channels)) {
bzero(buf, ccb->ataio.dxfer_len);
page->hdr.page_code = 0x02;
scsi_ulto2b(4 + 4 * (1 + enc->channels),
page->hdr.length);
for (i = 0; i < enc->channels; i++) {
ads = &page->elements[i + 1].array_dev_slot;
memcpy(ads, enc->status[i], 4);
ch = ahci_getch(device_get_parent(dev), i);
if (ch == NULL) {
ads->common.bytes[0] |= SES_OBJSTAT_UNKNOWN;
continue;
}
if (ch->pm_present)
ads->common.bytes[0] |= SES_OBJSTAT_UNKNOWN;
else if (ch->devices)
ads->common.bytes[0] |= SES_OBJSTAT_OK;
else if (ch->disablephy)
ads->common.bytes[0] |= SES_OBJSTAT_NOTAVAIL;
else
ads->common.bytes[0] |= SES_OBJSTAT_NOTINSTALLED;
if (ch->disablephy)
ads->common.bytes[3] |= SESCTL_DEVOFF;
ahci_putch(ch);
}
ccb->ccb_h.status = CAM_REQ_CMP;
goto out;
}
/* SEMB SEND DIAGNOSTIC (2) */
if (ccb->ataio.cmd.lba_low == 0x82 &&
ccb->ataio.cmd.features == 0x02 &&
ccb->ataio.cmd.sector_count >= (3 + enc->channels)) {
ads0 = &page->elements[0].array_dev_slot;
for (i = 0; i < enc->channels; i++) {
ads = &page->elements[i + 1].array_dev_slot;
if (ads->common.bytes[0] & SESCTL_CSEL) {
enc->status[i][0] = 0;
enc->status[i][1] = ads->bytes[0] &
SESCTL_RQSRR;
enc->status[i][2] = ads->bytes[1] &
(SESCTL_RQSACT | SESCTL_RQSID);
enc->status[i][3] = ads->bytes[2] &
SESCTL_RQSFLT;
ahci_em_setleds(dev, i);
} else if (ads0->common.bytes[0] & SESCTL_CSEL) {
enc->status[i][0] = 0;
enc->status[i][1] = ads0->bytes[0] &
SESCTL_RQSRR;
enc->status[i][2] = ads0->bytes[1] &
(SESCTL_RQSACT | SESCTL_RQSID);
enc->status[i][3] = ads0->bytes[2] &
SESCTL_RQSFLT;
ahci_em_setleds(dev, i);
}
}
ccb->ccb_h.status = CAM_REQ_CMP;
goto out;
}
/* SEMB RECEIVE DIAGNOSTIC RESULT (7) */
if (ccb->ataio.cmd.lba_low == 0x02 &&
ccb->ataio.cmd.features == 0x07 &&
ccb->ataio.cmd.sector_count >= (6 + 3 * enc->channels)) {
bzero(buf, ccb->ataio.dxfer_len);
page->hdr.page_code = 0x07;
scsi_ulto2b(4 + 15 + 11 * enc->channels, page->hdr.length);
elmd = (struct ses_elm_desc_hdr *)&buf[8];
scsi_ulto2b(11, elmd->length);
snprintf((char *)(elmd + 1), 12, "Drive Slots");
for (i = 0; i < enc->channels; i++) {
elmd = (struct ses_elm_desc_hdr *)&buf[8 + 15 + 11 * i];
scsi_ulto2b(7, elmd->length);
snprintf((char *)(elmd + 1), 8, "Slot %02d", i);
}
ccb->ccb_h.status = CAM_REQ_CMP;
goto out;
}
/* SEMB RECEIVE DIAGNOSTIC RESULT (a) */
if (ccb->ataio.cmd.lba_low == 0x02 &&
ccb->ataio.cmd.features == 0x0a &&
ccb->ataio.cmd.sector_count >= (2 + 3 * enc->channels)) {
bzero(buf, ccb->ataio.dxfer_len);
page->hdr.page_code = 0x0a;
scsi_ulto2b(4 + (sizeof(*elma) + sizeof(*elmb)) * enc->channels,
page->hdr.length);
for (i = 0; i < enc->channels; i++) {
elma = (struct ses_elm_addlstatus_eip_hdr *)&buf[
8 + (sizeof(*elma) + sizeof(*elmb)) * i];
elma->base.byte0 = 0x10 | SPSP_PROTO_ATA;
elma->base.length = 2 + sizeof(*elmb);
elma->byte2 = 0x01;
elma->element_index = 1 + i;
ch = ahci_getch(device_get_parent(dev), i);
if (ch == NULL) {
elma->base.byte0 |= 0x80;
continue;
}
if (ch->devices == 0 || ch->pm_present)
elma->base.byte0 |= 0x80;
elmb = (struct ses_elm_ata_hdr *)(elma + 1);
scsi_ulto4b(cam_sim_path(ch->sim), elmb->bus);
scsi_ulto4b(0, elmb->target);
ahci_putch(ch);
}
ccb->ccb_h.status = CAM_REQ_CMP;
goto out;
}
ccb->ccb_h.status = CAM_REQ_INVALID;
out:
xpt_done(ccb);
}
static void
ahci_em_begin_transaction(device_t dev, union ccb *ccb)
{
struct ahci_enclosure *enc;
struct ata_res *res;
enc = device_get_softc(dev);
res = &ccb->ataio.res;
bzero(res, sizeof(*res));
if ((ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) &&
(ccb->ataio.cmd.control & ATA_A_RESET)) {
res->lba_high = 0xc3;
res->lba_mid = 0x3c;
ccb->ccb_h.status = CAM_REQ_CMP;
xpt_done(ccb);
return;
}
if (enc->capsem & AHCI_EM_LED) {
ahci_em_emulate_ses_on_led(dev, ccb);
return;
} else
device_printf(dev, "Unsupported enclosure interface\n");
ccb->ccb_h.status = CAM_REQ_INVALID;
xpt_done(ccb);
}
static void
ahciemaction(struct cam_sim *sim, union ccb *ccb)
{
device_t dev, parent;
struct ahci_enclosure *enc;
CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE,
("ahciemaction func_code=%x\n", ccb->ccb_h.func_code));
enc = cam_sim_softc(sim);
dev = enc->dev;
switch (ccb->ccb_h.func_code) {
case XPT_ATA_IO: /* Execute the requested I/O operation */
if (ahci_check_ids(ccb))
return;
ahci_em_begin_transaction(dev, ccb);
return;
case XPT_RESET_BUS: /* Reset the specified bus */
case XPT_RESET_DEV: /* Bus Device Reset the specified device */
ahci_em_reset(dev);
ccb->ccb_h.status = CAM_REQ_CMP;
break;
case XPT_PATH_INQ: /* Path routing inquiry */
{
struct ccb_pathinq *cpi = &ccb->cpi;
parent = device_get_parent(dev);
cpi->version_num = 1; /* XXX??? */
cpi->hba_inquiry = PI_SDTR_ABLE;
cpi->target_sprt = 0;
cpi->hba_misc = PIM_SEQSCAN;
cpi->hba_eng_cnt = 0;
cpi->max_target = 0;
cpi->max_lun = 0;
cpi->initiator_id = 0;
cpi->bus_id = cam_sim_bus(sim);
cpi->base_transfer_speed = 150000;
strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
strlcpy(cpi->hba_vid, "AHCI", HBA_IDLEN);
strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
cpi->unit_number = cam_sim_unit(sim);
cpi->transport = XPORT_SATA;
cpi->transport_version = XPORT_VERSION_UNSPECIFIED;
cpi->protocol = PROTO_ATA;
cpi->protocol_version = PROTO_VERSION_UNSPECIFIED;
cpi->maxio = maxphys;
cpi->hba_vendor = pci_get_vendor(parent);
cpi->hba_device = pci_get_device(parent);
cpi->hba_subvendor = pci_get_subvendor(parent);
cpi->hba_subdevice = pci_get_subdevice(parent);
cpi->ccb_h.status = CAM_REQ_CMP;
break;
}
default:
ccb->ccb_h.status = CAM_REQ_INVALID;
break;
}
xpt_done(ccb);
}
static void
ahciempoll(struct cam_sim *sim)
{
}
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